US11821478B2 - Brake assembly with disks of variable thickness and methods for disk reuse - Google Patents
Brake assembly with disks of variable thickness and methods for disk reuse Download PDFInfo
- Publication number
- US11821478B2 US11821478B2 US16/902,603 US202016902603A US11821478B2 US 11821478 B2 US11821478 B2 US 11821478B2 US 202016902603 A US202016902603 A US 202016902603A US 11821478 B2 US11821478 B2 US 11821478B2
- Authority
- US
- United States
- Prior art keywords
- thickness
- stator
- brake assembly
- disk
- various embodiments
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active, expires
Links
- 238000000034 method Methods 0.000 title description 26
- 239000000463 material Substances 0.000 claims abstract description 91
- 239000011153 ceramic matrix composite Substances 0.000 claims description 121
- 239000002131 composite material Substances 0.000 claims description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 239000011159 matrix material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000000712 assembly Effects 0.000 description 7
- 238000000429 assembly Methods 0.000 description 7
- 230000008901 benefit Effects 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000003575 carbonaceous material Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
- F16D65/125—Discs; Drums for disc brakes characterised by the material used for the disc body
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
- F16D55/26—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member without self-tightening action
- F16D55/36—Brakes with a plurality of rotating discs all lying side by side
- F16D55/40—Brakes with a plurality of rotating discs all lying side by side actuated by a fluid-pressure device arranged in or one the brake
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/02—Braking members; Mounting thereof
- F16D65/12—Discs; Drums for disc brakes
- F16D65/127—Discs; Drums for disc brakes characterised by properties of the disc surface; Discs lined with friction material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D2055/0004—Parts or details of disc brakes
- F16D2055/0058—Fully lined, i.e. braking surface extending over the entire disc circumference
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D2055/0075—Constructional features of axially engaged brakes
- F16D2055/0095—Plural rotors with different properties, e.g. to influence working conditions like wear or temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0034—Materials; Production methods therefor non-metallic
- F16D2200/0039—Ceramics
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2200/00—Materials; Production methods therefor
- F16D2200/0034—Materials; Production methods therefor non-metallic
- F16D2200/0052—Carbon
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2250/00—Manufacturing; Assembly
- F16D2250/0084—Assembly or disassembly
Definitions
- the present disclosure relates to aircraft braking systems, and, more particularly, to methods for reusing friction disks in brake assemblies having friction disks of varying thickness.
- Aircraft brake systems typically employ a brake stack comprised of a series of friction disks, which may be forced into contact with one another to stop the aircraft.
- Hybrid brake stacks may comprise ceramic matrix composite (CMC) friction disks alternating with carbon fiber-reinforced/carbon matrix (C/C) composite friction disks.
- CMC ceramic matrix composite
- C/C carbon fiber-reinforced/carbon matrix
- the C/C composite disks may account for approximately 90-95% of the total wear, while the CMC disks tend to account for only 5-10% of the total wear.
- the brake stack has worn beyond the usable limit, the C/C composite disks may be consumed, with the CMC disks exhibiting very little wear; however, both disks are generally discarded.
- the brake assembly may comprise a friction disk stack comprising a plurality of rotors each comprising a first material, and a plurality of stators interleaved between the rotors.
- the stators may comprise a second material different from the first material.
- a wear rate of the first material may be different from a wear rate of the second material.
- a thickness of a first stator of the plurality of stators may be greater than a thickness of a second stator of the plurality of stators.
- a pressure plate may be located at a first end of the friction disk stack.
- the pressure plate may comprise the second material.
- a thickness of the pressure plate may be less than the thickness of the second stator.
- an end plate comprising the second material may be located at a second end of the friction disk stack opposite the first end of the friction disk stack.
- a thickness of the end plate may be less than the thickness of the second stator.
- the thickness of the end plate may be less than the thickness of the pressure plate.
- the first material may comprise a carbon fiber-reinforced/carbon matrix composite material.
- the second material may comprise a ceramic matrix composite material.
- At least one stator of the plurality of stators comprises a recycled stator.
- a thickness of a third stator of the plurality of stators is less than the thickness of the first stator and greater than the thickness of the second stator.
- a method of reusing a friction disk over multiple wear cycles is also disclosed herein.
- the method may comprise forming a first brake assembly by locating a first stator between a first rotor of the first brake assembly and a second rotor of the first brake assembly, and locating a second stator having a thickness different from a thickness of the first stator between the second rotor of the first brake assembly and a third rotor of the first brake assembly.
- the first stator and the second stator may comprise a first material and the first rotor of the first brake assembly and the second rotor of the first brake assembly may comprise a second material different from the first material.
- the first stator may comprise a first previously unused stator.
- the method may further comprise removing the first stator and the second stator from the first brake assembly, and forming a second brake assembly by locating a third stator between a first rotor of the second brake assembly and a second rotor of the second brake assembly, and incorporating at least one of the first stator or the second stator into the second brake assembly.
- the third stator may comprise a second previously unused stator.
- the method may further comprise removing a first portion of at least one of the first stator or the second stator prior to forming the second brake assembly.
- the method may further comprise removing the at least one of the first stator or the second stator from the second brake assembly, and forming a third brake assembly by locating a fourth stator between a first rotor of the third brake assembly and a second rotor of the third brake assembly and incorporating the at least one of the first stator or the second stator into the third brake assembly.
- the fourth stator may comprise a third previously unused stator.
- incorporating the at least one of the first stator or the second stator into the third brake assembly may comprise locating the at least one of the first stator or the second stator between the second rotor of the third brake assembly and a third rotor of the third brake assembly.
- incorporating the at least one of the first stator or the second stator into the third brake assembly may comprise using the at least one of the first stator or the second stator as at least one of a pressure plate of the third brake assembly or an end plate of the third brake assembly.
- the method may further comprise removing a second portion of at least one of the first stator or the second stator after the removing the at least one of the first stator or the second stator from the second brake assembly and prior to forming the third brake assembly.
- the first material may comprise a ceramic matrix composite material.
- the second material may comprise a carbon fiber-reinforced/carbon matrix composite material.
- a method of making a brake assembly using recycled friction disks is also disclosed herein.
- the method may comprise removing a first friction disk from a worn brake assembly.
- the first friction disk may comprise a first material.
- the worn brake assembly may comprise a second friction disk comprising a second material different from the first material.
- the method may further comprise removing a portion of the first friction disk to reduce a thickness of the first friction disk, and incorporating a previously unused friction disk, a third friction disk, and the first friction disk into an unworn brake assembly.
- the previously unused friction disk and the third friction disk may comprise the first material.
- the thickness of the first friction disk may be different from a thickness of the previously unused friction disk and from a thickness of the third friction disk.
- the first friction disk, the previously unused friction disk, and the third friction disk may comprise non-rotating components of the unworn brake assembly.
- the first material may comprise a ceramic matrix composite material
- the second material may comprise a carbon fiber-reinforced/carbon material composite material
- incorporating the first friction disk into the unworn brake assembly may comprise using the first friction disk as at least one of a pressure plate or an end plate of the unworn brake assembly.
- FIG. 1 illustrates a multi-disk brake assembly comprising stator disks of varying thickness, in accordance with various embodiments
- FIG. 2 A illustrates a multi-disk brake assembly comprising stator disks of varying thickness in an un-worn state, in accordance with various embodiments
- FIG. 2 B illustrates a multi-disk brake assembly in a worn state, in accordance with various embodiments
- FIG. 2 C illustrates an unworn multi-disk brake assembly comprising recycled stator disks of varying thickness, in accordance with various embodiments
- FIG. 2 D illustrates an unworn multi-disk brake assembly comprising recycled stator disks of varying thickness, in accordance with various embodiments
- FIGS. 3 A and 3 B illustrate a method of reusing a friction disk over multiple brake assembly wear cycles
- FIG. 4 illustrates a method of making a brake assembly using recycled friction disks, in accordance with various embodiments.
- any reference to singular includes plural embodiments, and any reference to more than one component or step may include a singular embodiment or step.
- any reference to attached, fixed, connected, or the like may include permanent, removable, temporary, partial, full, and/or any other possible attachment option.
- any reference to without contact (or similar phrases) may also include reduced contact or minimal contact.
- proximate refers to a direction inward, or generally, towards the reference component.
- distal refers to the direction outward, or generally, away from a reference component.
- Brake assemblies of the present disclosure may include brake stacks comprised of non-rotating friction disks (stator disks) splined to a non-rotating wheel axle interspersed with rotating friction disks (rotor disks) splined to the rotating wheel.
- the brake stacks may be hybrid brake stacks including rotor disks comprised of a C/C composite material and stator disks comprised of a CMC material.
- the stator disks may be of varying thickness.
- the stator disk proximate the piston housing also referred to herein as the S1 position
- the S1 position may be thicker than the other stator disks in an unworn state.
- stator disks may allow the stator disks to be reused/recycled (i.e., incorporated into a brake assembly comprised of new/unworn rotor disks). For example, at overhaul, the stator disk located at the S1 position may be machined to clean the wear surface and then incorporated into the stator two (S2) position. Similarly, the stator disk in the S2 position may be machined and then incorporated into a new stator position at overhaul.
- variable thickness and reuse of the CMC disks tends to reduce the amount of discarded material at overhaul and may also reduce the cost of overhauling a hybrid brake stack, as new/overhauled hybrid brake stacks may be formed using new rotors and one new CMC stator, as opposed to using new rotors and multiple new CMC stators.
- Brake assembly 20 may include a wheel 10 supported for rotation around axle 12 by bearings 14 .
- Wheel 10 includes rims 16 for supporting a tire, and a series of axially extending rotor splines 18 (one shown). Rotation of wheel 10 is modulated by brake assembly 20 .
- Brake assembly 20 includes piston housing 22 , torque tube 24 , a plurality of pistons 26 (one shown), pressure plate 30 , and end plate 32 .
- Torque tube 24 may be an elongated annular structure that includes a reaction plate 34 (also referred to as a back leg) and a series of axially extending stator splines 36 (one shown). Reaction plate 34 and stator splines 36 may be integral with torque tube 24 , as shown in FIG. 1 , or they may each be attached as separate components.
- Brake assembly 20 also includes a plurality of friction disks 38 .
- the plurality of friction disks 38 includes at least one non-rotatable friction disk (stator) 40 , and at least one rotatable friction disk (rotor) 42 .
- Each of the friction disks 38 includes an attachment structure.
- each of the three stators 40 includes a plurality of stator lugs 44 at circumferentially spaced positions around stators 40 as an attachment structure.
- each of the four rotatable rotors 42 includes a plurality of rotor lugs 46 at circumferentially spaced positions around rotor 42 .
- Piston housing 22 is mounted to axle 12 .
- Torque tube 24 is bolted or otherwise coupled to piston housing 22 with reaction plate 34 of torque tube 24 proximate an axial center of wheel 10 .
- End plate 32 is connected to, or is otherwise frictionally engaged with, a surface of reaction plate 34 that is facing axially away from the axial center of wheel 10 .
- End plate 32 is non-rotatable by virtue of its connection to or frictional engagement with torque tube 24 .
- Stator splines 36 may support pressure plate 30 such that pressure plate 30 is also non-rotatable.
- Stator splines 36 may also support non-rotatable stators 40 .
- Stators 40 may engage stator splines 36 with gaps formed between stator lugs 44 .
- rotors 42 may engage rotor splines 18 with gaps formed between rotor lugs 46 .
- Rotors 42 may be rotatable by virtue of their engagement with rotor splines 18 of wheel 10 .
- rotors 42 are arranged with end plate 32 on one end, pressure plate 30 on the other end, and stators 40 interleaved such that rotors 42 are adjacent to non-rotatable friction components.
- Pistons 26 are connected to piston housing 22 at circumferentially spaced positions around piston housing 22 . Pistons 26 face axially toward wheel 10 and contact a side of pressure plate 30 opposite rotors 42 . Pistons 26 may be powered electrically, hydraulically, or pneumatically. In response to actuation of pistons 26 , a force towards reaction plate 34 is exerted on friction disks 38 such that rotors 42 and stators 40 are pressed together between pressure plate 30 and end plate 32 .
- the non-rotating frictional components of brake assembly 20 may comprise a material that is different from the material of the rotating frictional component (e.g., rotors 42 ).
- rotors 42 comprise a C/C composite material and pressure plate 30 , end plate 32 , and/or stators 40 comprise CMC material.
- the material of the rotational components may have a wear rate that differs from the material of the non-rotational components. Stated differently, the difference in material of the rotational and non-rotational components may cause the rotational components to wear at a rate that is different from the non-rotational components. For example, the rotational components may wear faster than the non-rotational components.
- FIG. 2 A illustrates brake assembly 20 in an unworn state.
- each of the rotors 42 may comprise a C/C composite disk 142 .
- each of the C/C composite disks 142 comprises a thickness T 1 .
- the C/C composite disks 142 are approximately equal in thickness. As used herein, “approximately equal” means ⁇ 0.01 inches ( ⁇ 0.025 cm).
- FIG. 2 B illustrates brake assembly 20 after a wear cycle and in a fully worn state (i.e., worn beyond a suitable operational thickness).
- worn C/C composite disks 142 After a wear cycle of brake assembly 20 , worn C/C composite disks 142 have a thickness T 8 that is less than thickness T 1 .
- the stator 40 in the first stator (S1) position of brake assembly 20 may comprise a CMC disk 130 .
- CMC disk 130 may be a new or “previously unused” CMC disk.
- a “previously unused” disk refers to a disk that has not been previously employed in a brake assembly and/or has not been worn by virtue of contact with a friction disk during braking.
- CMC disk 130 comprises opposing wear surfaces 230 and 231 . During braking, wear surfaces 230 and 231 may contact C/C composite disks 142 , which may create friction to decelerate the aircraft. In the unworn state of FIG.
- the CMC disk in the S1 position comprises a thickness T 2 .
- the CMC disk in S1 position comprises a thickness T 9 that is less than thickness T 2 .
- the stator 40 in the second stator (S2) position of brake assembly 20 may comprise a CMC disk 132 .
- CMC disk 132 may be a recycled or previously used CMC disk.
- a “recycled” or “previously used” disk refers to a disk that has been previously employed in a brake assembly and/or has been worn by virtue of contact with another friction disk.
- the friction disk in the S2 position of brake assembly 20 may be a friction disk which was employed as an S1 friction disk during one or more previous wear cycle(s).
- CMC disk 132 comprises opposing wear surfaces 232 and 233 .
- the CMC disk in the S2 position comprises a thickness T 3 .
- thickness T 3 is less than thickness T 2 .
- thickness T 3 is between 85% and 99% of thickness T 2 .
- thickness T 3 is between 88% and 97% of thickness T 2 .
- thickness T 3 is between 90% and 95% of thickness T 2 .
- the stator 40 in the third stator (S3) position of brake assembly 20 may comprise a CMC disk 134 .
- CMC disk 134 may be a recycled or previously used CMC disk.
- the friction disk in the S3 position of brake assembly 20 may be a friction disk which was employed as an S1 and/or an S2 friction disk during one or more previous wear cycle(s).
- CMC disk 134 comprises opposing wear surfaces 234 and 235 . During braking, wear surfaces 234 and 235 may contact C/C composite disks 142 , which may create friction to decelerate the aircraft. In the unworn state of FIG.
- the CMC disk in the S3 position comprises a thickness T 4 .
- thickness T 4 is less than thickness T 3 .
- T 4 is between 75% and 89% of thickness T 2 .
- thickness T 4 is between 78% and 87% of thickness T 2 .
- thickness T 4 is between 80% and 85% of thickness T 2 .
- pressure plate 30 may comprise a CMC disk 136 .
- pressure plate 30 may comprise a stator located in a fourth stator (S4) position of brake assembly 20 .
- the S4 position may refer to a non-rotating frictional component of brake assembly 20 that comprises a non-rotating friction disk having a wear surface 236 oriented toward rotors 42 , and a non-wear 237 surface oriented away from rotors 42 and toward piston 26 , with momentary reference to FIG. 1 .
- wear surface 236 may contact a C/C composite disk 142 , which may create friction to decelerate the aircraft.
- CMC disk 136 may be a recycled or previously used CMC disk.
- the friction disk in the S4 position of brake assembly 20 may be a friction disk which was employed as an S1, S2, and/or S3 friction disk during one or more previous wear cycle(s).
- the CMC disk in the S4 position comprises a thickness T 5 .
- thickness T 5 is less than thickness T 4 .
- thickness T 5 is between 65% and 79% of thickness T 2 .
- thickness T 5 is between 68% and 77% of thickness T 2 .
- thickness T 5 is between 70% and 75% of thickness T 2 .
- end plate 32 may comprise a CMC disk 138 .
- end plate 32 may comprise a stator located in a fifth stator (S5) position of brake assembly 20 .
- the S5 position may be to a non-rotating frictional component of brake assembly 20 that comprises a CMC disk having a wear surface 238 oriented toward rotors 42 , and a non-wear 239 surface oriented away from rotors 42 and toward reaction plate 34 , with momentary reference to FIG. 1 .
- wear surface 238 may contact a C/C composite disk 142 , which may create friction to decelerate the aircraft.
- CMC disk 138 may be a recycled or previously used CMC disk.
- the friction disk in the S5 position of brake assembly 20 may be a friction disk which was employed as an S1, S2, S3, and/or S4 friction disk during one or more previous wear cycle(s).
- the CMC disk in the S5 position comprises a thickness T 6 .
- thickness T 6 is less than thickness T 5 .
- T 6 may be less than thickness T 4 , but greater than or equal to thickness T 5 .
- T 6 is between 55% and 69% of thickness T 2 .
- thickness T 6 is between 58% and 67% of thickness T 2 .
- T 6 is between 60% and 65% of thickness T 2 .
- brake assembly 20 in the unworn state, brake assembly 20 may have a thickness T 7 extending from non-wear surface 237 of CMC disk 136 to non-wear surface 239 of CMC disk 138 .
- fully worn brake assembly 20 may have a thickness T 14 extending from non-wear surface 237 of CMC disk 136 to non-wear surface 239 of CMC disk 138 .
- a greater portion of the difference between thickness T 7 and thickness T 14 may be caused by reduction in the thickness (or wear) of C/C composite disks 142 .
- approximately 90% of the difference between thickness T 7 and thickness T 14 may be attributable to wear of C/C composite disks 142 .
- “approximately” means ⁇ 10%.
- a relatively small portion of CMC disks 130 , 132 , 134 , 136 , and 138 may consumed during a wear cycle of brake assembly.
- the wear rate of the CMC disks may allow one or more of the CMC disks to be incorporated in unworn brake assemblies.
- the CMC disks when incorporating the CMC disks into unworn brake assemblies, may be located in new stator positions, as described in further detail below.
- FIG. 2 C shows an unworn brake assembly 120 incorporating recycled friction disks.
- brake assembly 120 may include recycled CMC disks 130 , 132 , 134 , and 136 from brake assembly 20 .
- Brake assembly 120 may further include a previously unused CMC disk 140 in the S1 position, and a plurality of new C/C composite disks 242 .
- a mass of unworn brake assembly 120 may be approximately equal to the mass of unworn brake assembly 20 . As used herein “approximately equal” means ⁇ 2% of the weight of unworn brake assembly 20 .
- stator disks from worn brake assembly 20 may be translated down one position in the new brake assembly 120 , and a new, previously unused disk may be introduced in the S1 position of brake assembly 120 .
- a new, previously unused disk may be introduced in the S1 position of brake assembly 120 .
- the mass of the new, unworn brake assembly is returned to the original value (e.g., to the mass of unworn brake assembly 20 ).
- CMC disks 130 , 132 , 134 , and/or 136 may be removed from brake assembly 20 and machined (e.g., cut, ground, sanded, etc.) to clean and planarize (i.e., flatten, smooth) the wear surfaces of the CMC disks.
- a portion of the CMC disk may be removed from one or both of the wear surfaces.
- a thickness of CMC disk is reduced.
- the CMC disks are incorporated into new brake assemblies.
- a location of the CMC disks in the new brake assemblies is selected based on the thickness of the CMC disk after planarizing the wear surfaces.
- CMC disk 130 may be removed from brake assembly 20 and incorporated into S2 position of brake assembly 120 .
- wear surface 230 and 231 are planarized. Stated differently, after removal from brake assembly 20 , CMC disk 130 is thinned by removing a portion of CMC disk 130 from wear surface 230 and wear surface 231 . In various embodiments, at least 0.007 inches (0.018 cm) may be removed from each of wear surface 230 and wear surface 231 , prior to incorporating CMC disk 130 into brake assembly 120 .
- between 0.010 inches and 0.02 inches (i.e., 0.025 cm and 0.051 cm) of material is removed from wear surface 230 and from wear surface 231 .
- the amount of material removed from wear surfaces 230 and 231 may be determined based on the difference between thickness T 9 and thickness T 3 .
- the amount of material removed from wear surfaces 230 and 231 may be selected such that after removal, the thickness of CMC disk 130 equals thickness T 3 .
- CMC disk 130 may be employed in between 2 and 5 wear cycles. For example, CMC disk 130 may be located in the S1 position during a first wear cycle, in the S2 position during a second wear cycle, in the S3 position during a third wear cycle, in the S4 position during a fourth wear cycle, and in the S5 position during a fifth wear cycle.
- CMC disk 132 may be removed from brake assembly 20 and incorporated into the S3 position of brake assembly 120 .
- wear surfaces 232 and 233 are planarized.
- CMC disk 132 is thinned by removing a portion of CMC disk 132 from wear surface 232 and wear surface 233 .
- at least 0.007 inches (0.018 cm) may be removed from wear surface 232 and from wear 233 , prior to incorporating CMC disk 132 into brake assembly 120 .
- between 0.010 inches and 0.02 inches (i.e., 0.025 cm and 0.051 cm) of material may be removed from wear surface 232 and from wear surface 233 .
- the amount of material removed from wear surfaces 232 and 233 may be determined based on the difference between thickness T 10 and thickness T 4 .
- the amount of material removed from wear surfaces 232 and 233 may be selected such that after removal, the thickness of CMC disk 132 equals thickness T 4 .
- a thickness of CMC disk 132 is less than thickness T 4 , additional material may be removed from surfaces wear surfaces 232 and 233 so that CMC disk 132 can be incorporated into the S4 position of brake assembly 120 (i.e., the thickness of CMC disk 132 is reduced to thickness T 5 ).
- CMC disk 134 may be removed from brake assembly 20 and incorporated into the S4 position of brake assembly 120 .
- wear surfaces 234 and 235 are planarized. In various embodiments, at least 0.007 inches (i.e., 0.018 cm) may be removed from each of wear surface 234 and wear surface 235 . In various embodiments, between 0.010 inches and 0.02 inches (i.e., 0.025 cm and 0.051 cm) of material is removed from wear surface 234 and from wear surface 235 . The amount of material removed from wear surfaces 234 and 235 may be determined based on the difference between thickness T 11 and thickness T 5 .
- a thickness of CMC disk 134 is less than thickness T 5 , additional material may be removed from surfaces wear surfaces 234 and 235 so that CMC disk 134 can be incorporated into the S5 position of brake assembly 120 (i.e., the thickness of CMC disk 134 is reduced to thickness T 6 ).
- CMC disk 136 may be removed from brake assembly 20 and incorporated into stator position S5 of brake assembly 120 .
- wear surface 236 and/or surface 237 is/are planarized. In various embodiments, at least 0.007 inches (i.e., 0.018 cm) may be removed from one or both surface 236 and/or surface 237 . In various embodiments, only one surface may be planarized as pressure plate 30 and end plate 32 each comprise one wear surface and one non-wear surface. In various embodiments, between 0.010 inches and 0.02 inches (i.e., 0.025 cm and 0.051 cm) of material may be removed from surface 236 and/or from surface 237 . The amount of material removed from surface 236 and/or surface 237 may be determined based on the difference between thickness T 12 and thickness T 6 .
- FIG. 2 D shows a brake assembly 220 incorporating recycled friction disks.
- brake assembly 220 may include recycled CMC disks 130 , 132 , 134 , and 140 .
- Brake assembly 220 may further include a previously unused CMC disk 144 in the S1 position, and a plurality of new C/C composite disks 342 .
- a mass of unworn brake assembly 220 may be approximately equal to the mass of unworn brake assemblies 20 and 120 . As used herein “approximately equal” means ⁇ 2% of the weight of unworn brake assembly 20 .
- each stator disks from worn brake assembly 120 may be translated down one position in the new brake stack 220 , and a new, previously unused disk may be introduced in the S1 position.
- a new, previously unused disk may be introduced in the S1 position.
- CMC disk 140 may be removed from brake assembly 120 and incorporated into the S2 position of brake assembly 220 .
- wear surface 240 and 241 are planarized.
- at least 0.007 inches (0.018 cm) may be removed from wear surface 240 and from wear surface 241 , prior to incorporating CMC disk into brake assembly 220 .
- between 0.010 inches and 0.02 inches (i.e., 0.025 cm and 0.051 cm) of material is removed from wear surface 240 and from wear surface 241 .
- the amount of material removed from wear surfaces 240 and 241 is selected such that after removal, the thickness of CMC disk 140 equals thickness T 3 . In various embodiments, if after planarizing wear surfaces 240 and 241 , a thickness of CMC disk 140 is less than thickness T 3 , additional material may be removed from surfaces wear surfaces 240 and 241 so that CMC disk 140 can be incorporated into the S3 position of brake assembly 220 (i.e., the thickness of CMC disk 140 is reduced to thickness T 4 ).
- CMC disk 130 may be removed from brake assembly 120 and incorporated into the S3 position of brake assembly 220 .
- wear surfaces 230 and 231 are planarized.
- at least 0.007 inches (0.018 cm) may be removed from wear surface 230 and from wear surface 231 , prior to incorporating CMC disk 130 into brake assembly 220 .
- between 0.010 inches and 0.02 inches (i.e., 0.025 cm and 0.051 cm) of material is removed from wear surface 230 and from wear surface 231 .
- the amount of material removed from wear surfaces 230 and 231 is selected such that after removal, the thickness of CMC disk 130 equals thickness T 4 .
- a thickness of CMC disk 130 is less than thickness T 4 , additional material may be removed from wear surfaces 230 and 231 so that CMC disk 130 can be incorporated into the S4 or S5 position of brake assembly 220 (i.e., the thickness of CMC disk 130 is reduced to thickness T 5 or T 6 , respectively).
- CMC disk 132 may be removed from brake assembly 120 and incorporated into stator position S4 of brake assembly 220 .
- wear surfaces 232 and 233 are planarized.
- at least 0.007 inches i.e., 0.018 cm
- between 0.010 inches and 0.02 inches (i.e., 0.025 cm and 0.051 cm) of material is removed from wear surface 232 and from wear surface 233 .
- the amount of material removed from wear surface 232 and wear surface 233 is selected such that after removal, the thickness of CMC disk 132 equals thickness T 5 . In various embodiments, if after planarizing wear surfaces 232 and 233 , a thickness of CMC disk 132 is less than thickness T 5 , additional material may be removed from surfaces wear surfaces 232 and 233 so that CMC disk 132 can be incorporated into the S5 position of brake assembly 120 (i.e., the thickness of CMC disk 132 is reduced to thickness T 6 ).
- CMC disk 134 may be removed from brake assembly 120 and incorporated into stator position S5 of brake assembly 220 .
- wear surface 234 and/or surface 235 is/are planarized.
- at least 0.007 inches i.e., 0.018 cm
- only one surface may be planarized as pressure plate 30 and end plate 32 each comprise one wear surface and one non-wear surface.
- between 0.010 inches and 0.02 inches (i.e., 0.025 cm and 0.051 cm) of material may be removed from surface 234 and/or from surface 235 .
- the amount of material removed from surface 234 and/or surface 235 is selected such that CMC disk 134 can be incorporated into the S5 position of brake assembly 120 (i.e., the thickness of CMC disk 134 is reduced to thickness T 6 ).
- the CMC disks may continue to be recycled until they are worn beyond a viable thickness.
- a CMC disk comprising a thickness of less than or equal to 45% of thickness T 2 i.e., 45% of the thickness of a previously unused CMC disk
- a CMC disk comprising a thickness of less than or equal to 50% of thickness T 2 may discarded.
- FIGS. 3 A and 3 B illustrate a method 350 of reusing a friction disk over multiple brake assembly wear cycles, in accordance with various embodiments.
- Method 350 may comprise forming a first brake assembly (step 352 ).
- Step 352 may comprise locating a previously unused stator in the S1 position (step 354 ), and locating stators of decreasing thickness in the S2, S3, S4, and S5 positions (step 356 ).
- the stators may comprise a first material (e.g., a CMC material) and the rotors of the brake assembly may comprise a second material (e.g., a C/C composite material).
- Method 350 may further comprise removing the stators from the first brake assembly (step 358 ) after a wear cycle of the first brake assembly, removing a portion (i.e., thinning) the stators (step 360 ), and forming a second brake assembly (step 362 ).
- Step 362 may include locating a previously unused stator in the S1 position of the second brake assembly (step 364 ), and incorporating one or more of the stators from the first brake assembly into the S2, S3, S4 and/or S5 positions of the second brake assembly (step 366 ).
- method 350 may further comprise removing the stators from second brake assembly (step 368 ) after a wear cycle of the second brake assembly, removing a portion (i.e., thinning) the stators (step 370 ), and forming a new unworn (i.e., third) brake assembly (step 372 ).
- Step 372 may include locating a previously unused stator in the S1 position of the new unworn brake assembly (step 374 ), and incorporating stators from a worn brake assembly (e.g., the second brake assembly) in the S2, S3, S4 and/or S5 positions of the new unworn brake assembly (step 376 ).
- steps 368 , 370 , and 372 may be repeated as many times as desired.
- FIG. 4 illustrates a method 400 of making a brake assembly using recycled friction disks.
- Method 400 may comprise removing a first friction disk from a worn brake assembly (step 402 ).
- the first friction disk may comprise a first material.
- the worn brake assembly may comprise a second friction disk comprising a second material different from the first material.
- Method 400 may further comprise removing a portion of the first friction disk to reduce a thickness of the first friction disk (step 404 ), and incorporating the first friction disk and a previously unused friction disk into an unworn brake assembly (step 406 ).
- step 406 may comprise using the first friction disk a pressure plate or an end plate of the unworn brake assembly.
- the previously unused friction disk and the third friction disk may comprise the first material.
- the thickness of the first friction disk may be different from a thickness of the previously unused friction disk and from a thickness of the third friction disk.
- the first friction disk, the previously unused friction disk, and the third friction disk may comprise non-rotating components of the unworn brake assembly.
- the first material may comprise a ceramic matrix composite material
- the second material may comprise a carbon fiber-reinforced/carbon material composite material.
- references to “one embodiment”, “an embodiment”, “an example embodiment”, etc. indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described. After reading the description, it will be apparent to one skilled in the relevant art(s) how to implement the disclosure in alternative embodiments.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
Claims (14)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/902,603 US11821478B2 (en) | 2017-11-27 | 2020-06-16 | Brake assembly with disks of variable thickness and methods for disk reuse |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/822,353 US10724591B2 (en) | 2017-11-27 | 2017-11-27 | Brake assembly with disks of variable thickness and methods for disk reuse |
US16/902,603 US11821478B2 (en) | 2017-11-27 | 2020-06-16 | Brake assembly with disks of variable thickness and methods for disk reuse |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/822,353 Continuation US10724591B2 (en) | 2017-11-27 | 2017-11-27 | Brake assembly with disks of variable thickness and methods for disk reuse |
Publications (2)
Publication Number | Publication Date |
---|---|
US20200309210A1 US20200309210A1 (en) | 2020-10-01 |
US11821478B2 true US11821478B2 (en) | 2023-11-21 |
Family
ID=64500273
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/822,353 Active US10724591B2 (en) | 2017-11-27 | 2017-11-27 | Brake assembly with disks of variable thickness and methods for disk reuse |
US16/902,603 Active 2039-03-05 US11821478B2 (en) | 2017-11-27 | 2020-06-16 | Brake assembly with disks of variable thickness and methods for disk reuse |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/822,353 Active US10724591B2 (en) | 2017-11-27 | 2017-11-27 | Brake assembly with disks of variable thickness and methods for disk reuse |
Country Status (2)
Country | Link |
---|---|
US (2) | US10724591B2 (en) |
EP (1) | EP3502506B1 (en) |
Citations (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3480115A (en) * | 1967-03-22 | 1969-11-25 | Hispano Suiza Lallemant Soc | Disc brakes |
US3956548A (en) | 1973-12-20 | 1976-05-11 | Goodyear Aerospace Corporation | Duo material carbon composite brake disk |
GB2161227A (en) * | 1984-07-02 | 1986-01-08 | Goodrich Co B F | Disk brake and method of assembly |
US4742895A (en) | 1984-07-02 | 1988-05-10 | The B. F. Goodrich Company | Disk brake assembly |
EP0346066A1 (en) | 1988-06-08 | 1989-12-13 | Dunlop Limited | Improvements in multi-disc brakes |
CA2004091A1 (en) | 1988-11-29 | 1990-05-29 | Jean Guichard | Carbon multiple disk brake |
US5295560A (en) | 1991-07-02 | 1994-03-22 | Aircraft Braking Systems Corporation | Thermally balanced brake stack |
US5509507A (en) * | 1989-06-01 | 1996-04-23 | Dunlop Limited A British Company | Multi-disc brakes |
US5551534A (en) | 1995-06-05 | 1996-09-03 | Aircraft Braking Systems Corp. | Pressure balanced brake stack |
EP0840029A1 (en) | 1996-10-31 | 1998-05-06 | Messier Bugatti | Arrangement of carbon brake discs for an aircraft brake unit and assembly method for discs according to such an arrangement |
EP1052422A2 (en) | 1999-05-11 | 2000-11-15 | The B.F. Goodrich Company | Disk brake stack replaceable in three runs and method of assembly |
EP1103738A1 (en) | 1999-11-24 | 2001-05-30 | The B.F. Goodrich Company | Disc brake stack replaceable in three runs and method of assembly |
US6439353B2 (en) | 2000-01-12 | 2002-08-27 | Airbus Deutschland Gmbh | Aircraft wheel brake with exchangeable brake segments |
US20020170787A1 (en) | 2001-04-09 | 2002-11-21 | James Mark C. | Wear resistance in carbon fiber friction materials |
JP3386476B2 (en) * | 1997-06-06 | 2003-03-17 | アライドシグナル・インコーポレーテッド | How to replace an aircraft brake assembly |
US20040112687A1 (en) * | 2002-12-11 | 2004-06-17 | Mcafee David D. | Method of increasing friction material utilization for carbon brakes |
US20050011706A1 (en) | 2003-07-15 | 2005-01-20 | Dunlop Aerospace Limited | Composite article |
US6855428B2 (en) | 2000-09-29 | 2005-02-15 | B. F. Goodrich Company | Boron carbide based ceramic matrix composites |
US7168828B2 (en) * | 2004-10-08 | 2007-01-30 | B/E Aerospace, Inc. | Multicolored LED vehicle interior light |
US20070175710A1 (en) | 2006-02-01 | 2007-08-02 | Walker Terence B | Method and brake disc assembly to utilize worn refurbished brake material |
EP2647861A1 (en) | 2012-04-06 | 2013-10-09 | Messier-Bugatti-Dowty | A method of using and renovationg a disk from a stack of disks of vehicle brake |
US8573369B2 (en) | 2006-12-07 | 2013-11-05 | Honeywell International Inc. | Methods and brake disc assemblies to increase the use of friction material |
US20140054810A1 (en) | 2012-08-27 | 2014-02-27 | Dacc Co., Ltd | Method for refurbishing an aircraft brake disk |
EP2775161A2 (en) | 2013-03-08 | 2014-09-10 | Goodrich Corporation | Systems and methods for alternating material brake disk stack |
EP2818750A1 (en) | 2013-06-26 | 2014-12-31 | Messier-Bugatti-Dowty | Method for using and renovating a disc of a disc stack |
US20150136547A1 (en) | 2013-11-21 | 2015-05-21 | Messier-Bugatti-Dowty | Method for the reconditioning and use of brake discs of the rear stator type with studs, assembled disc and corresponding stack of discs |
US20170001373A1 (en) | 2015-06-30 | 2017-01-05 | Honeywell International Inc. | Carbon fiber preforms |
US20170138423A1 (en) | 2015-11-17 | 2017-05-18 | Goodrich Corporation | Damper brake |
US20170175833A1 (en) | 2015-12-18 | 2017-06-22 | Goodrich Corporation | Systems and methods for carbon-carbon materials incorporating yttrium and zirconium compounds |
US20170267594A1 (en) | 2016-03-21 | 2017-09-21 | Goodrich Corporation | Systems and methods for carbon structures incorporating silicon carbide whiskers |
US20170321770A1 (en) | 2016-05-05 | 2017-11-09 | Parker-Hannifin Corporation | Positioning of disks in the brake released mode for multi disk brakes |
-
2017
- 2017-11-27 US US15/822,353 patent/US10724591B2/en active Active
-
2018
- 2018-11-27 EP EP18208610.8A patent/EP3502506B1/en active Active
-
2020
- 2020-06-16 US US16/902,603 patent/US11821478B2/en active Active
Patent Citations (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3480115A (en) * | 1967-03-22 | 1969-11-25 | Hispano Suiza Lallemant Soc | Disc brakes |
US3956548A (en) | 1973-12-20 | 1976-05-11 | Goodyear Aerospace Corporation | Duo material carbon composite brake disk |
GB2161227A (en) * | 1984-07-02 | 1986-01-08 | Goodrich Co B F | Disk brake and method of assembly |
US4742895A (en) | 1984-07-02 | 1988-05-10 | The B. F. Goodrich Company | Disk brake assembly |
EP0346066A1 (en) | 1988-06-08 | 1989-12-13 | Dunlop Limited | Improvements in multi-disc brakes |
US4977985A (en) | 1988-06-08 | 1990-12-18 | Dunlop Limited A British Company | Method of carrying out maintenace of multi-disc brake arrangement |
CA2004091A1 (en) | 1988-11-29 | 1990-05-29 | Jean Guichard | Carbon multiple disk brake |
US5509507A (en) * | 1989-06-01 | 1996-04-23 | Dunlop Limited A British Company | Multi-disc brakes |
US5295560A (en) | 1991-07-02 | 1994-03-22 | Aircraft Braking Systems Corporation | Thermally balanced brake stack |
US5551534A (en) | 1995-06-05 | 1996-09-03 | Aircraft Braking Systems Corp. | Pressure balanced brake stack |
EP0840029A1 (en) | 1996-10-31 | 1998-05-06 | Messier Bugatti | Arrangement of carbon brake discs for an aircraft brake unit and assembly method for discs according to such an arrangement |
US5992577A (en) * | 1996-10-31 | 1999-11-30 | Messier-Bugatti | Arrangement of carbon brake disks for an aircraft brake unit and a method of assembling disks in such an arrangement |
JP3386476B2 (en) * | 1997-06-06 | 2003-03-17 | アライドシグナル・インコーポレーテッド | How to replace an aircraft brake assembly |
EP1052422A2 (en) | 1999-05-11 | 2000-11-15 | The B.F. Goodrich Company | Disk brake stack replaceable in three runs and method of assembly |
US7168528B1 (en) | 1999-05-11 | 2007-01-30 | Goodrich Corporation | Three run disk brake stack and method of assembly |
EP1103738A1 (en) | 1999-11-24 | 2001-05-30 | The B.F. Goodrich Company | Disc brake stack replaceable in three runs and method of assembly |
US6340075B1 (en) | 1999-11-24 | 2002-01-22 | The B. F. Goodrich Company | Three run disk brake stack and method of assembly |
US6439353B2 (en) | 2000-01-12 | 2002-08-27 | Airbus Deutschland Gmbh | Aircraft wheel brake with exchangeable brake segments |
US6855428B2 (en) | 2000-09-29 | 2005-02-15 | B. F. Goodrich Company | Boron carbide based ceramic matrix composites |
US20020170787A1 (en) | 2001-04-09 | 2002-11-21 | James Mark C. | Wear resistance in carbon fiber friction materials |
US20040112687A1 (en) * | 2002-12-11 | 2004-06-17 | Mcafee David D. | Method of increasing friction material utilization for carbon brakes |
US7104366B2 (en) | 2002-12-11 | 2006-09-12 | Honeywell International | Method of increasing friction material utilization for carbon brakes |
US20050011706A1 (en) | 2003-07-15 | 2005-01-20 | Dunlop Aerospace Limited | Composite article |
US7168828B2 (en) * | 2004-10-08 | 2007-01-30 | B/E Aerospace, Inc. | Multicolored LED vehicle interior light |
US20070175710A1 (en) | 2006-02-01 | 2007-08-02 | Walker Terence B | Method and brake disc assembly to utilize worn refurbished brake material |
US7900751B2 (en) * | 2006-02-01 | 2011-03-08 | Honeywell International Inc. | Method and brake disc assembly to utilize worn refurbished brake material |
US8573369B2 (en) | 2006-12-07 | 2013-11-05 | Honeywell International Inc. | Methods and brake disc assemblies to increase the use of friction material |
US9108278B2 (en) * | 2012-04-06 | 2015-08-18 | Messier-Bugatti-Dowty | Method of using and renovating a disk from a stack of disks of a vehicle brake |
EP2647861A1 (en) | 2012-04-06 | 2013-10-09 | Messier-Bugatti-Dowty | A method of using and renovationg a disk from a stack of disks of vehicle brake |
US20140054810A1 (en) | 2012-08-27 | 2014-02-27 | Dacc Co., Ltd | Method for refurbishing an aircraft brake disk |
EP2775161A2 (en) | 2013-03-08 | 2014-09-10 | Goodrich Corporation | Systems and methods for alternating material brake disk stack |
US20140251739A1 (en) | 2013-03-08 | 2014-09-11 | Goodrich Corporation | Systems and methods for alternating material brake disk stack |
US9416831B2 (en) | 2013-03-08 | 2016-08-16 | Goodrich Corporation | Systems and methods for alternating material brake disk stack |
EP2818750A1 (en) | 2013-06-26 | 2014-12-31 | Messier-Bugatti-Dowty | Method for using and renovating a disc of a disc stack |
US9352826B2 (en) * | 2013-06-26 | 2016-05-31 | Messier-Bugatti-Dowty | Method of using and renovating a disk from a stack of disks |
US20150001009A1 (en) | 2013-06-26 | 2015-01-01 | Messier-Bugatti-Dowty | Method of using and renovating a disk from a stack of disks |
US20150136547A1 (en) | 2013-11-21 | 2015-05-21 | Messier-Bugatti-Dowty | Method for the reconditioning and use of brake discs of the rear stator type with studs, assembled disc and corresponding stack of discs |
US20170001373A1 (en) | 2015-06-30 | 2017-01-05 | Honeywell International Inc. | Carbon fiber preforms |
US20170138423A1 (en) | 2015-11-17 | 2017-05-18 | Goodrich Corporation | Damper brake |
US20170175833A1 (en) | 2015-12-18 | 2017-06-22 | Goodrich Corporation | Systems and methods for carbon-carbon materials incorporating yttrium and zirconium compounds |
US20170267594A1 (en) | 2016-03-21 | 2017-09-21 | Goodrich Corporation | Systems and methods for carbon structures incorporating silicon carbide whiskers |
US20170321770A1 (en) | 2016-05-05 | 2017-11-09 | Parker-Hannifin Corporation | Positioning of disks in the brake released mode for multi disk brakes |
Non-Patent Citations (6)
Title |
---|
European Patent Office, European Search Report dated May 29, 2019 in Application No. 18208610.8. |
USPTO; Final Office Action dated Apr. 17, 2019 in U.S. Appl. No. 15/822,353. |
USPTO; Final Office Action dated Jan. 24, 2020 in U.S. Appl. No. 15/822,353. |
USPTO; Non-Final Office Action dated Jul. 12, 2019 in U.S. Appl. No. 15/822,353. |
USPTO; Notice of Allowance dated Apr. 6, 2020 in U.S. Appl. No. 15/822,353. |
USPTO; Pre-Interview First Office Action dated Dec. 19, 2018 in U.S. Appl. No. 15/822,353. |
Also Published As
Publication number | Publication date |
---|---|
US20200309210A1 (en) | 2020-10-01 |
EP3502506B1 (en) | 2020-09-16 |
US20190162262A1 (en) | 2019-05-30 |
US10724591B2 (en) | 2020-07-28 |
EP3502506A1 (en) | 2019-06-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US9541145B2 (en) | Keyed brake disk assembly | |
US10274034B2 (en) | Wear liner with integrated torque button | |
US9194447B2 (en) | Keyed brake disk assembly | |
US10544844B2 (en) | Plate assemblies including floating wear linings for multi-disk brake systems and methods for reducing vibration in a multi-disk brake system | |
US10871196B2 (en) | Extended torque tube | |
US11821478B2 (en) | Brake assembly with disks of variable thickness and methods for disk reuse | |
US10890227B2 (en) | Wear liner with unidirectional notch | |
US20160304191A1 (en) | Increased brake radius to improve rto performance | |
US20200325948A1 (en) | Multiple layer piston insulator for hydraulic brake actuator | |
US10228030B2 (en) | Multi-disk brake assembly with travel limit pin | |
US10962069B2 (en) | Segmented rivetless wear liner with structural carbon or ceramic core | |
US10494087B2 (en) | Differential torque plate barrel thickness | |
US11226019B2 (en) | Carbon brake stack assembly for improved life | |
US10948037B2 (en) | Segmented rivetless wear liner with structural carbon or ceramic core | |
US11614136B2 (en) | Wear liner manufacturing systems and methods |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: GOODRICH CORPORATION, NORTH CAROLINA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:O'NEIL, MATTHEW R.;RIEBE, GARY C.;REEL/FRAME:052950/0373 Effective date: 20171122 |
|
FEPP | Fee payment procedure |
Free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: PRE-INTERVIEW COMMUNICATION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: RESPONSE AFTER FINAL ACTION FORWARDED TO EXAMINER |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: PUBLICATIONS -- ISSUE FEE PAYMENT VERIFIED |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |